WEST PALM BEACH, Fla. (AP) - A married congressman who faces accusations that he had an affair with a former aide and paid her to keep quiet about it also was having an affair with a second woman around the same time, a person close to his campaign told The Associated Press on Tuesday.

Details of the second affair came hours after Democratic U.S. Rep. Tim Mahoney held a news conference to address a story, first reported by ABC News, that he had been involved with the former aide. Mahoney acknowledged he had caused "embarrassment and heartache" to his family but denied doing anything illegal.

Mahoney, 52, won his seat in 2006 while promising to return morals and family values to Washington in the aftermath of the resignation of former Republican U.S. Rep. Mark Foley. Foley stepped down when it was revealed he sent lurid Internet messages to male teenage pages who had worked on Capitol Hill. Foley was later cleared of criminal wrongdoing by state and federal authorities.